String check - AlphaNumeric

I need a way to check a string to see if it contains a mixture of alpha and numerics - also need to check if one is just alpha or just numeric - whichI think I can do from the below - but not certain how to check to see if contains any mixture of alpha and numerics.

Use this article to create a batch file to backup a Microsoft SQL Server database to a Windows folder. The folder can be on the local hard drive or on a network share. This batch file will query the SQL server to get the current date & time and wi…

Ever needed a SQL 2008 Database replicated/mirrored/log shipped on another server but you can't take the downtime inflicted by initial snapshot or disconnect while T-logs are restored or mirror applied?
You can use SQL Server Initialize from Backup…

This video shows, step by step, how to configure Oracle Heterogeneous Services via the Generic Gateway Agent in order to make a connection from an Oracle session and access a remote SQL Server database table.

Using examples as well as descriptions, and references to Books Online, show the different Recovery Models available in SQL Server and explain, as well as show how full, differential and transaction log backups are performed